/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.ast.statement;

public enum SQLUnionOperator {
  UNION("UNION"), UNION_ALL("UNION ALL"), MINUS("MINUS"), EXCEPT("EXCEPT"), INTERSECT("INTERSECT"),
  DISTINCT("UNION DISTINCT");

  public final String name;
  public final String name_lcase;

  private SQLUnionOperator(String name) {
    this.name = name;
    this.name_lcase = name.toLowerCase();
  }

  public String toString() {
    return name;
  }
}
